CVE-2005-2032 in solaris
Summary
by MITRE
unknown vulnerability in lpadmin on sun solaris 7 8 and 9 allows local users to overwrite arbitrary files.
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Analysis
by VulDB Data Team • 07/05/2021
The vulnerability identified as CVE-2005-2032 represents a critical file system security flaw within the lpadmin utility on Sun Solaris 7, 8, and 9 operating systems. This issue stems from improper privilege handling and file creation mechanisms within the printer administration tool that governs print queue management and printer configuration. The lpadmin utility, which serves as a command-line interface for administering printer queues and printer devices, contains a design flaw that permits local authenticated users to manipulate file system permissions and overwrite existing files with arbitrary content. This vulnerability operates at the system level and leverages the utility's insufficient validation of file paths and access controls during file creation operations.
The technical exploitation of this vulnerability occurs when local users leverage the lpadmin command to create or modify printer configuration files, specifically targeting the underlying file system structures. The flaw manifests through inadequate input sanitization and path validation mechanisms that allow attackers to specify file paths that bypass normal security checks. When the lpadmin utility processes printer queue configurations, it fails to properly validate the target file paths, enabling malicious users to overwrite existing system files or configuration files with unauthorized content. This behavior directly violates the principle of least privilege and enables privilege escalation scenarios where local users can potentially modify critical system components. The vulnerability is categorized under CWE-22, which addresses improper limitation of a pathname to a restricted directory, commonly known as path traversal attacks. This weakness allows attackers to access files and directories that are stored outside the intended directory, leading to unauthorized data access or modification.
From an operational impact perspective, this vulnerability presents significant security risks to Solaris systems running the affected versions. Local users who can execute the lpadmin command gain the ability to overwrite critical system files, potentially leading to system instability, data corruption, or complete system compromise. The vulnerability is particularly dangerous because it operates with minimal detection requirements, as local users already possess the necessary permissions to execute the lpadmin utility. Attackers could exploit this flaw to overwrite system configuration files, executable binaries, or critical log files, thereby enabling persistent access or denial of service conditions. The impact extends beyond simple file overwrites, as attackers might target system binaries to inject malicious code or manipulate system settings to maintain unauthorized access. This vulnerability aligns with ATT&CK technique T1068, which involves exploiting local system privileges to gain unauthorized access to system resources.
The mitigation strategies for CVE-2005-2032 involve multiple layers of defensive measures that address both immediate remediation and long-term security hardening. System administrators should immediately apply the relevant security patches provided by Sun Microsystems to address the specific lpadmin utility flaw. Additionally, implementing strict file system permissions and access controls can limit the ability of local users to manipulate printer configuration files. The principle of least privilege should be enforced by restricting the execution permissions of the lpadmin utility to only authorized administrative users. Network segmentation and monitoring systems should be deployed to detect unusual file modification patterns or unauthorized access attempts to critical system files. Regular security audits should verify that printer queue configurations are properly secured and that no unnecessary users have access to printer administration utilities. The vulnerability demonstrates the importance of proper input validation and access control mechanisms in system utilities, reinforcing the need for comprehensive security testing of administrative tools. Organizations should also implement comprehensive logging and monitoring of printer administration activities to detect potential exploitation attempts and maintain audit trails for forensic analysis.